292 lines
10 KiB
Groff
292 lines
10 KiB
Groff
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.\" ========================================================================
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.\"
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.IX Title "UUID 1"
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.TH UUID 1 "OSSP uuid 1.6.2" "04-Jul-2008" "Universally Unique Identifier"
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.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.\" way too many mistakes in technical documents.
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.if n .ad l
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.nh
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.SH "NAME"
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\&\fB\s-1OSSP\s0 uuid\fR \- \fBUniversally Unique Identifier Command-Line Tool\fR
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.SH "VERSION"
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.IX Header "VERSION"
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\&\s-1OSSP\s0 uuid \s-11.6.2 (04-Jul-2008)\s0
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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\&\fBuuid\fR
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[\fB\-v\fR \fIversion\fR]
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[\fB\-m\fR]
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[\fB\-n\fR \fIcount\fR]
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[\fB\-1\fR]
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[\fB\-F\fR \fIformat\fR]
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[\fB\-o\fR \fIfilename\fR]
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[\fInamespace\fR \fIname\fR]
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.PP
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\&\fBuuid\fR
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\&\fB\-d\fR
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[\fB\-r\fR]
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[\fB\-o\fR \fIfilename\fR]
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\&\fIuuid\fR
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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\&\fB\s-1OSSP\s0 uuid\fR is a \s-1ISO\-C:1999\s0 application programming interface (\s-1API\s0) and
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corresponding command line interface (\s-1CLI\s0) for the generation of \s-1DCE\s0
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1.1, \s-1ISO/IEC\s0 11578:1996 and \s-1IETF\s0 \s-1RFC\-4122\s0 compliant \fIUniversally Unique
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Identifier\fR (\s-1UUID\s0). It supports \s-1DCE\s0 1.1 variant UUIDs of version 1 (time
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and node based), version 3 (name based, \s-1MD5\s0), version 4 (random number
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based) and version 5 (name based, \s-1SHA\-1\s0). Additional \s-1API\s0 bindings are
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provided for the languages \s-1ISO\-\*(C+:1998\s0, Perl:5 and \s-1PHP:4/5\s0. Optional
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backward compatibility exists for the ISO-C \s-1DCE\-1\s0.1 and Perl Data::UUID
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APIs.
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.PP
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UUIDs are 128 bit numbers which are intended to have a high likelihood
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of uniqueness over space and time and are computationally difficult
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to guess. They are globally unique identifiers which can be locally
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generated without contacting a global registration authority. UUIDs
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are intended as unique identifiers for both mass tagging objects
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with an extremely short lifetime and to reliably identifying very
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persistent objects across a network.
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.PP
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This is the command line interface (\s-1CLI\s0) of \fB\s-1OSSP\s0 uuid\fR. For a
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detailed description of UUIDs see the documentation of the application
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programming interface (\s-1API\s0) in \fIuuid\fR\|(3).
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.SH "OPTIONS"
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.IX Header "OPTIONS"
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.IP "\fB\-v\fR \fIversion\fR" 3
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.IX Item "-v version"
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Sets the version of the generated \s-1DCE\s0 1.1 variant \s-1UUID\s0. Supported
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are \fIversion\fR "\f(CW1\fR\*(L", \*(R"\f(CW3\fR\*(L", \*(R"\f(CW4\fR\*(L" and \*(R"\f(CW5\fR\*(L". The default is \*(R"\f(CW1\fR".
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.Sp
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For version 3 and version 5 UUIDs the additional command line arguments
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\&\fInamespace\fR and \fIname\fR have to be given. The \fInamespace\fR is either
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a \s-1UUID\s0 in string representation or an identifier for internally
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pre-defined namespace UUIDs (currently known are "\f(CW\*(C`ns:DNS\*(C'\fR\*(L",
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\&\*(R"\f(CW\*(C`ns:URL\*(C'\fR\*(L", \*(R"\f(CW\*(C`ns:OID\*(C'\fR\*(L", and \*(R"\f(CW\*(C`ns:X500\*(C'\fR"). The \fIname\fR is a string of
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arbitrary length.
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.IP "\fB\-m\fR" 3
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.IX Item "-m"
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Forces the use of a random multi-cast \s-1MAC\s0 address when generating
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version 1 UUIDs. By default the real physical \s-1MAC\s0 address of the system
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is used.
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.IP "\fB\-n\fR \fIcount\fR" 3
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.IX Item "-n count"
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Generate \fIcount\fR UUIDs instead of just a single one (the default).
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.IP "\fB\-1\fR" 3
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.IX Item "-1"
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If option \fB\-n\fR is used with a \fIcount\fR greater than \f(CW1\fR, then this
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option can enforce the reset the \s-1UUID\s0 context for each generated \s-1UUID\s0.
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This makes no difference for \fIversion\fR \f(CW3\fR, \f(CW4\fR and \f(CW5\fR UUIDs. But
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version \f(CW1\fR UUIDs are based on the previously generated \s-1UUID\s0 which is
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remembered in the \s-1UUID\s0 context of the \s-1API\s0. Option \fB\-1\fR deletes the
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remembered \s-1UUID\s0 on each iteration.
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.IP "\fB\-F\fR \fIformat\fR" 3
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.IX Item "-F format"
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Representation format for importing or exporting an \s-1UUID\s0. The
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following (case insensitive) format identifiers are currently recognized:
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.RS 3
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.ie n .IP "\*(C`BIN\*(C' (binary representation)" 4
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.el .IP "\f(CW\*(C`BIN\*(C'\fR (binary representation)" 4
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.IX Item "BIN (binary representation)"
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This is the raw 128 bit network byte order binary representation of a
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\&\s-1UUID\s0. Example is the octet stream \f(CW\*(C`0xF8 0x1D 0x4F 0xAE 0x7D 0xEC 0x11
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0xD0 0xA7 0x65 0x00 0xA0 0xC9 0x1E 0x6B 0xF6\*(C'\fR.
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.ie n .IP "\*(C`STR\*(C' (string representation)" 4
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.el .IP "\f(CW\*(C`STR\*(C'\fR (string representation)" 4
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.IX Item "STR (string representation)"
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This is the 36 character hexadecimal \s-1ASCII\s0 string representation of a
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\&\s-1UUID\s0. Example is the string "\f(CW\*(C`f81d4fae\-7dec\-11d0\-a765\-00a0c91e6bf6\*(C'\fR".
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.ie n .IP "\*(C`SIV\*(C' (single integer value representation)" 4
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.el .IP "\f(CW\*(C`SIV\*(C'\fR (single integer value representation)" 4
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.IX Item "SIV (single integer value representation)"
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This is the maximum 39 character long single integer
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value representation of a \s-1UUID\s0. Example is the string
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"\f(CW329800735698586629295641978511506172918\fR".
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.RE
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.RS 3
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.RE
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.IP "\fB\-o\fR \fIfilename\fR" 3
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.IX Item "-o filename"
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Write output to \fIfilename\fR instead of to \fIstdout\fR.
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.IP "\fB\-d\fR" 3
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.IX Item "-d"
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Decode a given \s-1UUID\s0 (given as a command line argument or if the command
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line argument is "\f(CW\*(C`\-\*(C'\fR" the \s-1UUID\s0 is read from \fIstdin\fR) and dump textual
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information about the \s-1UUID\s0.
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.SH "EXAMPLES"
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.IX Header "EXAMPLES"
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.Vb 3
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\& # generate DCE 1.1 v1 UUID (time and node based)
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\& $ uuid \-v1
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\& 01c47915\-4777\-11d8\-bc70\-0090272ff725
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\&
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\& # decode and dump DCE 1.1 v1 UUID (time and node based)
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\& $ uuid \-d 01c47915\-4777\-11d8\-bc70\-0090272ff725
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\& encode: STR: 01c47915\-4777\-11d8\-bc70\-0090272ff725
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\& SIV: 2349374037528578887923094374772111141
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\& decode: variant: DCE 1.1, ISO/IEC 11578:1996
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\& version: 1 (time and node based)
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\& content: time: 2004\-01\-15 16:22:26.376322.1 UTC
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\& clock: 15472 (usually random)
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\& node: 00:90:27:2f:f7:25 (global unicast)
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\&
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\& # generate DCE 1.1 v3 UUID (name based)
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\& $ uuid \-v3 ns:URL http://www.ossp.org/
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\& 02d9e6d5\-9467\-382e\-8f9b\-9300a64ac3cd
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\&
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\& # decode and dump DCE 1.1 v3 UUID (name based)
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\& $ uuid \-d 02d9e6d5\-9467\-382e\-8f9b\-9300a64ac3cd
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\& encode: STR: 02d9e6d5\-9467\-382e\-8f9b\-9300a64ac3cd
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\& SIV: 3789866285607910888100818383505376205
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\& decode: variant: DCE 1.1, ISO/IEC 11578:1996
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\& version: 3 (name based, MD5)
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\& content: 02:D9:E6:D5:94:67:08:2E:0F:9B:93:00:A6:4A:C3:CD
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\& (not decipherable: MD5 message digest only)
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\&
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\& # generate DCE 1.1 v4 UUID 4 (random data based)
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\& $ uuid \-v4
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\& eb424026\-6f54\-4ef8\-a4d0\-bb658a1fc6cf
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\&
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\& # decode and dump DCE 1.1 v4 UUID 4 (random data based)
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\& $ uuid \-d eb424026\-6f54\-4ef8\-a4d0\-bb658a1fc6cf
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\& encode: STR: eb424026\-6f54\-4ef8\-a4d0\-bb658a1fc6cf
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\& SIV: 312712571721458096795100956955942831823
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\& decode: variant: DCE 1.1, ISO/IEC 11578:1996
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\& version: 4 (random data based)
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\& content: EB:42:40:26:6F:54:0E:F8:24:D0:BB:65:8A:1F:C6:CF
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\& (no semantics: random data only)
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.Ve
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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\&\fIuuid\fR\|(3), \fIOSSP::uuid\fR\|(3).
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